JiangHua Zhu created HDFS-16647:
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Summary: Delete unused NameNode#FS_HDFS_IMPL_KEY
Key: HDFS-16647
URL: https://issues.apache.org/jira/browse/HDFS-16647
Project: Hadoop HDFS
Issue Type: Improvement
Components: namenode
Affects Versions: 3.3.3
Reporter: JiangHua Zhu
There's some history here, NameNode#FS_HDFS_IMPL_KEY was introduced in
HDFS-15450, and something was removed later in HDFS-15533, but FS_HDFS_IMPL_KEY
was kept.
Here are some discussion details:
https://github.com/apache/hadoop/pull/2229#discussion_r470935801
It seems to be cleaner to remove the unused NameNode#FS_HDFS_IMPL_KEY.
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